Critical severity · published Apr 27, 2022
CVE-2021-46442
In the "webupg" binary of D-Link DIR-825 G1, attackers can bypass authentication through parameters "autoupgrade.asp", and perform functions such as downloading configuration…
9.8
CVSS
56.1%
EPSS
No
On KEV
Description
In the "webupg" binary of D-Link DIR-825 G1, attackers can bypass authentication through parameters "autoupgrade.asp", and perform functions such as downloading configuration files and updating firmware without authorization.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)56.1% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
Dir-825 Firmware · Dlink
All versions, or not specified · source: NVD
Affected product
DF
Dir-825 Firmware
Dlink
More from Dir-825 Firmware
9.8
CVE-2019-16920
D-Link Multiple Routers Command Injection Vulnerability
9.8
CVE-2025-10666
D-Link DIR-825 apply.cgi sub_4106d4 buffer overflow
9.8
CVE-2025-10034
D-Link DIR-825 httpd ping6_response.cg get_ping6_app_stat buffer overflow
9.8
CVE-2025-8949
D-Link DIR-825 httpd ping_response.cgi get_ping_app_stat stack-based overflow
9.8
CVE-2025-7206
D-Link DIR-825 httpd switch_language.cgi sub_410DDC stack-based overflow